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Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
639
Companies
980
Updated
11.10.2026
639 Questions 980 Companies11.10.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Bloomberg logo
BloombergGoogleAmazonRobinhood

Also asked at Amazon, Robinhood

Medium
Software Engineer

Sum Importance over an Employee's Reachable Subordinates

Problem Each Employee object has a unique id, an integer importance, and a list subordinates of direct report IDs. Given the objects and an employee i...

Coding & AlgorithmsGraphs
1
0
21 people solved
Amazon logo
Amazon
Medium
Software Engineer Locked

Fewest Edge Relocations to Make an Undirected Graph Connected

Given an undirected graph as a node count and an edge list, compute the fewest edge relocations needed to make every node reachable from every other, ...

Coding & AlgorithmsGraphs
8
1
71 people solved
Sep 5, 2026
PhonePe logo
PhonePeGoogleAmazon

Also asked at Amazon, Media.net, Meta, Microsoft, Bloomberg, Snowflake, Snapchat

Medium
Software Engineer

Maximize Stone Removals Using Shared Rows or Columns

Problem Each pair in stones is a distinct occupied integer coordinate. You may remove a stone only while another remaining stone shares its row or its...

Coding & AlgorithmsGraphs
0
0
10 people solved
Hadrian logo
Hadrian
Hard
Software Engineer

Work Order Lead Time: Critical Path Through an Operations DAG to Shipping

A manufacturing work order is modeled as a directed acyclic graph. Each node is an operation, such as machining or inspection, that takes a whole numb...

Coding & AlgorithmsGraphsDynamic Programming
4
0
43 people solved
Sep 4, 2026
Microsoft logo
Microsoft
Medium
Software EngineerSenior+

Count the Separate Land Regions in a Binary Grid Map

You are given a rectangular map as a grid of cells, where 1 marks land and 0 marks water. Two land cells belong to the same region when they share an ...

Coding & AlgorithmsGrids & Matrices
1
2
22 people solved
Aug 23, 2026
Harvey logo
Harvey
Medium
Software Engineer

Implement a Formula Spreadsheet

Design and implement a small in-memory spreadsheet. The spreadsheet must support cell labels such as A1 and B10, where a label consists of uppercase l...

Coding & AlgorithmsData Structure DesignGraphs
23
1
306 people solved
Apr 11, 2026
Google logo
Google
Medium
Software Engineer Locked

Design Extensible Spreadsheet Aggregation APIs

Design reusable spreadsheet sum, minimum, and maximum APIs with operator state, shared cell evaluation, error policies, and extensible aggregation.

Software Engineering FundamentalsLow-Level Design (OOP)Code Quality & Maintainability
3
0
69 people solved
Sep 18, 2026
Amazon logo
AmazonAppleGoogle

Also asked at Google, Microsoft, Meta, Bloomberg, Samsung, LinkedIn, TikTok, Lime, Uber

Medium
Software Engineer

Decide Whether an Undirected Graph Can Be Two-Colored

Problem graph is an undirected adjacency list that may be disconnected. Decide whether its vertices can be split into two sets so that every edge join...

Coding & AlgorithmsGraphs
0
0
15 people solved
Amazon logo
AmazonPinterestGoogle

Also asked at Google, Bloomberg, Uber, Snapchat, TikTok, Microsoft, PhonePe, Info Edge, BitGo, Meta, Oracle, Walmart Labs, Salesforce

Hard
Software Engineer

Minimize Bus Boardings between Two Stops

Problem Each routes[i] lists the stops visited forever in a cycle by bus i. Start at source on no bus and travel only by riding buses, transferring at...

Coding & AlgorithmsGraphs
1
0
11 people solved
Amazon logo
AmazonMicrosoftTikTok

Also asked at TikTok, Google, Meta, Zepto, Bloomberg, Salesforce, Okta, Oracle, Deshaw

Medium
Software Engineer

Collect Binary-Tree Nodes at an Exact Distance from a Target

Problem Given a binary-tree root, a pointer target to a node in that tree, and k, return the values of every node exactly k edges from the target. Edg...

Coding & AlgorithmsTreesGraphs
1
0
10 people solved
Uber logo
Uber
Medium
Software Engineer

Solve these algorithmic problems

You are given the following independent coding tasks. For each task, design an algorithm and implement a function that returns the requested output. -...

Coding & AlgorithmsDynamic ProgrammingBinary Search
77
2
620 people solved
Feb 11, 2026
Mercor logo
Mercor
Medium
Machine Learning Engineer Locked

Implement a Referral Network

This question evaluates skills in modeling and manipulating directed acyclic graphs, implementing graph-based ranking metrics (reachability and flow c...

Coding & AlgorithmsGraphsData Structure Design
27
0
291 people solved
May 2, 2026
Google logo
Google
Medium
Software Engineer

Minimum-Product Path in a Directed Weighted Graph

A directed graph has n nodes, numbered 0 to n - 1, and weighted edges. The cost of a path is the product of its edge weights, not their sum. Return th...

Coding & AlgorithmsGraphs
1
1
21 people solved
May 26, 2026
Google logo
GoogleAmazonMetaAtlassian

Also asked at Meta, Atlassian

Hard
Software Engineer

Latest Flooding Day with a Land Crossing

Problem A row by col grid is entirely land on day 0. On each subsequent day, the next coordinate in cells becomes water; coordinates are one-based and...

Coding & AlgorithmsGrids & MatricesBinary Search
1
0
11 people solved
Amazon logo
AmazonGoogleMeta

Also asked at Meta, UiPath, CleverTap

Medium
Software Engineer

Decide Whether Letter-Variable Equalities and Inequalities Are Consistent

Problem Each four-character equation has the form x==y or x!=y, with lowercase single-letter variables that may be the same letter. Return whether int...

Coding & AlgorithmsGraphs
1
0
11 people solved
Anthropic logo
Anthropic
Medium
Software Engineer Locked

Design Instagram (Feed, Photos, and Friend Recommendations)

This question evaluates a candidate's ability to design a large-scale, read-heavy social media backend, covering data modeling for follow graphs, medi...

System DesignSearch & Feed SystemsCaching
21
0
219 people solved
Jun 23, 2026
Confluent logo
Confluent
Medium
Software Engineer

Implement Tail and Find Monster Cost

This entry contains two coding tasks from the same interview category. Task A: Implement a file tail operation Implement a function tail(filePath, n) ...

Coding & AlgorithmsGrids & MatricesGraphs
29
0
329 people solved
Apr 29, 2026
Ramp logo
Ramp
Medium
Software Engineer Locked

Implement Spreadsheet Cells with Dependencies

This Ramp software engineering question tests spreadsheet cell dependencies, recalculation order, and cycle handling. It is useful preparation for int...

Software Engineering FundamentalsData Structure DesignGraphs
12
0
240 people solved
Jul 2, 2026
Pinterest logo
Pinterest
Medium
Software Engineer

Fewest Buses to Ride Between Two Stops on Looping Bus Lines

A city runs several bus lines. Each line drives a fixed loop of stops and repeats it forever, so a rider who boards a line can stay on from any of its...

Coding & AlgorithmsGraphs
5
0
42 people solved
Jul 13, 2026
Amazon logo
AmazonTeslaGoogle

Also asked at Google, Meta, Microsoft, Bloomberg, TikTok, Goldman Sachs, Anduril, Zomato

Medium
Software Engineer

Find the Fewest Rolls through a Snakes-and-Ladders Board

Problem The n-by-n board labels squares1 through n squared, beginning at the bottom-left cell and reversing horizontal direction on every row upward. ...

Coding & AlgorithmsGraphsSimulation & State Machines
0
0
10 people solved
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